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pic 18f4431 about spi communication

 
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mew1986



Joined: 15 Oct 2011
Posts: 7
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pic 18f4431 about spi communication
PostPosted: Mon Dec 19, 2011 5:13 am     Reply with quote
How to work both spi and uart in pic18f4431 ? When I put printf function
spi can't transmit and receive the value. Independently it works. How to solve the problem ? Anyone help me.
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EDWARD
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Dec 19, 2011 1:45 pm     Reply with quote
The SDO and RX functions are both on the same pin in this PIC:
RC7/RX/DT/SDO

See Ttelmah's replies regarding this problem in these threads:
http://www.ccsinfo.com/forum/viewtopic.php?t=40126
http://www.ccsinfo.com/forum/viewtopic.php?t=29028
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